jm + packets + internet   2

_Measuring Mobile Web Performance_ [slides]
Notable slide is #13, displaying a graph of HSDPA packet RTTs measured from a train. Max RTT gets up to 20,266ms. ouch
rtt  packets  latency  hsdpa  mobile  internet  trains  packet-loss 
june 2013 by jm
SSL/TLS overhead
'The TLS handshake has multiple variations, but let’s pick the most common one – anonymous client and authenticated server (the connections browsers use most of the time).' Works out to 4 packets, in addition to the TCP handshake's 3, and about 6.5k bytes on average.
network  tls  ssl  performance  latency  speed  networking  internet  security  packets  tcp  handshake 
june 2013 by jm

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